One of the arguments that I think could have been made more explicit in the breakdown-of-nations is that for "high entropy societies", or in the social sciences, lower Gini coefficients.
(NB: probably not just "high efficiency", since he refers to the need for many small states, not just equally sized big states in a federation)
One thing I find a little annoying about a minimum wage is exactly this: inflation is a fact of our current monetary system, and having the minimum wage be a set rate does nothing for minimum wage workers when living expenses go up due to inflation. You can try to keep raising it, but that is a political struggle every time you have to do it.
What we need are curbs on inequality: more laws like Measure L in SF that counter perverse concentrations of wealth.